JP2023504313A - Tooth cleaning system and method of use - Google Patents

Abstract

A tooth cleaning system that provides improved brushing area coverage. The system includes an actuated tray containing brushing elements. The brushing elements may be arranged to engage the anterior, posterior and upper surfaces of the teeth of the upper and lower jaws. This actuation can be configured to oscillate the tray laterally, thereby brushing all surfaces of the teeth simultaneously. Some embodiments include relatively dense bristles that enhance the effectiveness of brushing. Additionally, aspects of the system reduce the time it takes to brush teeth. [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present subject disclosure relates to brushing, scrubbing and cleaning in general, and more specifically to instruments for simultaneously brushing multiple tooth surfaces.

The field of tooth cleaning includes multiple approaches to brushing teeth. A very basic conventional approach provides a single manually operated brush head. The user applies the brush head to one tooth or two overlapping teeth until moving to the next location.

Other approaches use electric toothbrushes for approaches where manual toothbrushes are not effective. Some electric toothbrushes power a single head either by rotary motion (where the brush head rotates) or by reciprocating motion. Still, the single brush head approach takes time to brush against each tooth.

Some devices offer multiple toothbrush heads, but their effectiveness is limited due to the choice of range of motion (eg, along the axis into and out of the user's mouth). As will be appreciated, such an approach may not be effective because the direction of brushing is not along the front of the front teeth, which are the teeth most visible to others. Moreover, with such an approach, the posterior surfaces of the anterior teeth can often be overlooked.

In some cases, conventional brushing instruments are not provided with enough bristles to adequately reach each tooth surface at the same time.

SUMMARY In one aspect of the present disclosure, a tooth cleaning system is disclosed. The system comprises: an arcuate tray configured to receive a set of teeth, the tray having an inner arcuate wall, an outer arcuate wall, an inner surface of the outer arcuate wall and the inner arcuate wall; a baffle disposed transversely between the inner surface of the wall and defining an upper channel for receiving the teeth of the upper jaw and defining a lower channel for receiving the teeth of the lower jaw; a plurality of bristles disposed; a handle; a connector by which the arcuate tray is coupled to the handle; a motor coupled to the handle; An oscillator, wherein the oscillator is configured to move the arcuate tray side to side along the same plane as the baffle in response to operation of the motor.

In another aspect of the present disclosure, a tooth cleaning system is disclosed comprising: an arcuate tray configured to receive a set of teeth, the tray having an inner arcuate wall and an outer arcuate wall; a baffle positioned transversely between an inner surface of said outer arcuate wall and an inner surface of said inner arcuate wall and defining an upper channel for receiving teeth of the upper jaw and a lower channel for receiving teeth of the lower jaw; , a plurality of bristles disposed within said upper channel and within said lower channel, said plurality of bristles comprising a density of 324-646 bristles per cm ² . a handle; a connector by which the arcuate tray is coupled to the handle; a motor coupled to the handle, the operation of which causes the teeth of the upper jaw to be brushed and the The motor in which the teeth of the mandible are brushed.

In yet another aspect of the present disclosure, a tooth cleaning system is disclosed comprising: an arcuate tray configured to receive a set of teeth, the tray having an inner arcuate wall and an outer arcuate wall; and a baffle positioned transversely between the inner surface of the outer arcuate wall and the inner surface of the inner arcuate wall to define an upper channel for receiving the teeth of the upper jaw and a lower channel for receiving the teeth of the lower jaw. and a plurality of bristles disposed within said upper channel and within said lower channel, said plurality of bristles comprising a density of 324-646 bristles per cm ² , wherein said each of the upper surface of the baffle, the lower surface of the baffle, the inner surface of the inner arcuate wall, and the inner surface of the outer arcuate wall, each including a plurality of receptacles, the plurality of bristles being arranged in a bundle within each receptacle; a tray; a handle; a connector by which the arcuate tray is coupled to the handle; a motor coupled to the handle, the operation of which causes the teeth of the upper jaw to be brushed. an oscillator coupled to the connector for moving the arcuate tray side to side along the same plane as the baffle in response to operation of the motor; An oscillator, which consists of

It is understood that other configurations of the subject technology will become readily apparent to those skilled in the art from the detailed description that follows. Various configurations of the subject technology are shown and described by way of example in the following detailed description. As will be realized, the subject technology is capable of other and different configurations, and its several details may be disclosed in various other respects, all without departing from the scope of the subject technology. Can be changed. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature and not as restrictive.

Technical problems exist with tooth cleaning equipment regarding the coverage of the teeth during cleaning and the time it takes to clean the teeth during a session. For example, there are technical problems with movement of brushing elements to cover the entire tooth surface. Current automatic brushing systems focus on the top surface of the teeth and actuate the brushing head with axial movements in and out of the mouth.

Embodiments of the subject technology provide a tooth cleaning system for providing improved coverage and improved range of motion for more effective brushing of teeth by motor drive. Aspects of the present system include bristle placement that provides higher bristle density than past systems. Another aspect that contributes to improved brushing performance includes the actuation motion used in some embodiments. The system may be configured to operate brushing in a lateral range of motion.

The higher density covers more tooth surfaces to be brushed. The system includes a motor that automatically activates the brushing function. The system can automatically brush all tooth surfaces during operation. Lateral actuation of the brushing elements provides a more natural motion for the user to brush the front surfaces of the teeth simultaneously with the top and rear surfaces.

1 is a perspective view of a tooth cleaning system in accordance with aspects of the present subject technology; FIG.

2 is a top perspective view of a tray component of the system of FIG. 1 in accordance with aspects of the present subject technology; FIG.

3 is a side perspective view of the tray of FIG. 2; FIG.

4 is a top view of the tray of FIG. 2; FIG.

5 is a side view of the tray of FIG. 2; FIG.

6 is a side perspective view of the tray of FIG. 2 with hair removed; FIG.

FIG. 7 is a bottom view of the tray of FIG. 2 with hair removed;

8 is a connector side end view of the tray of FIG. 2; FIG.

9 is a perspective view of a motorized handle of the system of FIG. 1 in accordance with aspects of the present subject technology; FIG.

10 is a front view of the handle of FIG. 9; FIG.

11 is a side view of the handle of FIG. 9; FIG.

12 is a bottom perspective view of the handle of FIG. 9; FIG.

13 is a perspective view of a motor drive element within the handle of FIG. 9 in accordance with aspects of the present subject technology; FIG.

14 is a front view of the handle of FIG. 13; FIG.

15 is a partial front view of the handle of FIG. 13 with an enlarged view of the oscillator system showing side-to-side oscillatory motion of the shaft according to one embodiment; FIG.

16 is a front perspective view of the oscillator system of FIG. 15; FIG.

17 is a bottom perspective view of the guide plate and shaft assembly in the oscillator system shown in FIG. 15; FIG.

18 is a top perspective view of the cam system in the oscillator system of FIG. 15; FIG.

19 is a top perspective view of a motor that operates the oscillator system of FIG. 15 with the cam system removed; FIG.

20 is a perspective cross-sectional view of a cam interface in the oscillator system of FIG. 18, according to an exemplary embodiment; FIG.

The detailed description set forth below is intended as a description of various configurations of the subject technology, and is not intended to represent the only configurations in which the subject technology may be implemented. The accompanying drawings are incorporated into this specification and constitute a part of the detailed description. The detailed description contains specific details for a thorough understanding of the subject technology. However, it will be apparent to those skilled in the art that the subject technology may be practiced without these specific details. For ease of understanding, similar or similar elements are given the same element numbers.

Referring now to FIG. 1, a tooth cleaning system 100 (generally referred to as "system 100") is shown in accordance with an exemplary embodiment. System 100 generally includes a tray assembly 110 (sometimes referred to as "tray 110") and a handle assembly 150 (sometimes referred to as "handle 150"). The handle assembly 150 is motorized, as described in further detail below. Tray 110 is connected to handle 150 such that tray 110 is actuated to brush the user's teeth. In general use, tray assembly 110 may be inserted axially along axis "a" into a user's mouth (not shown). Axis "a" represents a line or plane extending from the bottom of handle 150 to the front of tray assembly 110 and generally in the insertion direction. When handle 150 is operated, a motor element (described below) can actuate tray assembly 110 laterally (relative to axis "a") along axis "l". For example, the left and right sides of tray 110 can move toward the left and right sides of handle 150 .

2-8, tray assembly 110 is shown in accordance with an exemplary embodiment. The tray 110 may be generally arcuate to index the shape of the user's jaw. In an exemplary embodiment, tray 110 may include outer arcuate wall 115 and inner arcuate wall 145 . In some embodiments, the baffle 135 may be positioned across and span between the inner surface 120 of the outer arcuate wall 115 and the inner surface 125 of the inner arcuate wall 145 . Baffle 135 may follow the generally arcuate shape of tray 110 . In some embodiments, baffle 135 may be parallel to the plane of axis "l" and transverse to axis "a" (see Figure 2). The arrangement of the baffle 135 between the outer arcuate wall 115 and the inner arcuate wall 145 may define an upper arcuate channel for receiving the teeth of the upper jaw and define a lower arcuate channel for receiving the teeth of the mandible during use. can. A plurality of brushing elements 130 are positioned within the channels of the tray assembly 110 . The plurality of brushing elements 130 can be, for example, bristles (sometimes referred to as "bristle-hair"). In some embodiments, bristles can be, for example, nylon, microfiber, sponge, organic sponge, cloth, rubber, silicone, or bamboo.

In some embodiments, the top and bottom surfaces of outer arcuate wall 115, inner arcuate wall 145 and baffle 135 include a plurality of receptacles (holes) (FIGS. 6 and 7). Each receptacle may be configured to hold a bundle of bristles 130 . The free ends of bristles 130 may be positioned to contact the front, back and top surfaces of each tooth (and to reach between the tooth and gum). In some embodiments, the tufts of bristles protruding from the inner surface 120 of the outer arcuate wall 115 and the tufts of bristles protruding from the inner surface 125 of the inner arcuate wall 145 are at an acute angle to the top/bottom plane of the baffle 135. can stand out. In operation, when the tray 100 is activated, the bristles 130 on the baffles 135 brush the upper surfaces of the teeth. The bristles on the inner surface 120 of the outer arcuate wall 115 and the bristles from the inner surface 125 of the inner arcuate wall 145 brush the front and back surfaces of the teeth. The bristles on the inner surface 120 of the outer arcuate wall 115 and the angle of the bristles from the inner surface 125 of the inner arcuate wall 145 facilitate brushing along the front/back height of the tooth. In some embodiments, the innermost and outermost rows of bristles 130 of baffle 135 are aligned with bristles 130 (of the row closest to baffle 135) on inner surface 120 of outer arcuate wall 115 and inner surface 125 of inner arcuate wall 145. can partially overlap.

In an exemplary embodiment, the bristles may be arranged at a density of about 42 bristles per hole and 452.4 bristles per square centimeter. In embodiments, the hair density may vary between 324-646 hairs per cm ² . As will be appreciated, bristle density can vary depending on factors such as bristles per hole, number of holes, hole spacing, hole diameter and the diameter of the bristles used. For example, an embodiment using softer bristles with a smaller bristle diameter than the present embodiment with 42 bristles per hole may have about 84 bristles per hole. Such an embodiment would have about the same density but a softer brush grade. Similarly, in embodiments using stiffer bristles with a thicker bristle diameter, 24 bristles per hole may be used to achieve the same density. Thus, bristle density can be manipulated by increasing or decreasing the bristle diameter and/or the number of bristles per hole. Additionally, other aforementioned factors (regarding hole location, size and spacing) may be manipulated to produce hair densities within the scope of the present disclosure. For example, more open area between holes may require more bristles to provide the same density and vice versa.

Thus, when referring to "hair density," the present subject disclosure generally encompasses the density of hair material per area, and any underlying factors for hair density are discussed in the techniques herein. It is understood that substitutions can be made while still falling within the range of . The bristle material per area may be based on the diameter of the bristles used in one embodiment multiplied by the number of bristles per unit area.

Embodiments may include a total of 327 to 653 holes on both sides of surfaces 120 and 125 and baffle 135 . In an exemplary embodiment, surfaces 120 and 125 and both sides of baffle 135 may have a total of about 480 holes. In embodiments, the holes may be placed with a hole spacing of 1.8 to about 0.75 mm. In some embodiments, surfaces (120, 125, 135) can have about 7.72 to about 15.38 holes per cm ² . In an exemplary embodiment, there may be approximately 11.31 holes per cm ² .

There can be about 42 curved hairs/holes. Embodiments may include a range of about 25-55 bristles per hole. The thickness of the bristles can range from 0.01 to 0.2 mm. In embodiments with 42 bristles per hole, the thickness of the bristles may be about 0.15 mm. In total, there may be approximately 13,100 to 26,120 curved bristles inserted within tray assembly 110 . In an exemplary embodiment, there may be 19,200 curved bristles inserted into tray assembly 110 . As will be appreciated, this bristle density exceeds conventional bristle densities in past systems, thereby improving coverage of the tooth surface brushing area. With a minimal range of motion, system 100 can brush teeth more efficiently. It will be appreciated that this is a significant improvement in technology, as the amount of space available for lateral movement within the user's mouth is limited. The density of the bristles 130 in the subject technology allows for better brushing effect with limited lateral movement.

In some embodiments, inner surface 120 of outer arcuate wall 115 and/or inner surface 125 of inner arcuate wall 145 may include grooves. See Figures 6 and 7. As will be appreciated, the slots 112 provide flexibility to the tray 110 so that the tray 100 can flex to accommodate different size jaws. In some embodiments, outer arcuate wall 115 and inner arcuate wall 145 may comprise a soft plastic shell, such as a thermoplastic polyurethane, silicone or thermoplastic elastomer shell. This provides support to hold the inner surfaces 120 and 125 . In some embodiments, inner surfaces 120 and 125 may comprise a harder material than outer arcuate wall 115, such as hard plastic (eg, which may be polypropylene, acrylonitrile butadiene styrene, or polycarbonate plastic). As can be appreciated, the softer the material of outer arcuate wall 115 and inner arcuate wall 145, the more those elements will contact the user's inner cheek surface as brushing element 130 engages the user's teeth and gums. It is comfortable for the user. In some embodiments, inner surfaces 120 and 125 can be rigid to provide a rigid support structure to hold brushing element 130 in place during use.

3-8, in some embodiments, tray assembly 100 may include connector 140 coupled to the outer surface of outer arcuate wall 115. As shown in FIG. Connector 140 may be configured to receive an oscillator mechanism. The oscillator mechanism is described in more detail below. For example, some embodiments may include a mating element 142 (eg, a female receptacle) capable of receiving a drive element (described below with reference to FIGS. 9-12) that actuates tray assembly 110 .

9-12, a handle assembly 150 is shown in accordance with an exemplary embodiment. Handle 150 includes housing 155 and button 160, which initiates operation of tray assembly 110 when triggered. Handle 150 may house oscillator assembly 170 . In the exemplary embodiment, oscillator assembly 170 includes shaft 172 (see FIG. 13) that protrudes from the top of housing 155 . Shaft 172 may be covered by sleeve 146 . Sleeve 146 may be a male connection configured to slide into an opening in connector 140 . A distal end 148 of shaft 172 may be configured to mate with mating element 142 within connector 140 shown in FIG. Oscillator assembly 170 may be configured to move shaft 172 left and right. The oscillator assembly 170 drives the tray assembly 110 such that the tray assembly 110 oscillates laterally from one side to the other when the shaft 172 is actuated.

Although the above mating configuration has been described with the sleeve 146 attached to the handle 150 , in other embodiments the sleeve 146 may alternatively reside within the connector 140 and end 148 of the shaft 172 . is inserted through the interior of sleeve 146 to connect to mating element 142 .

13-20, oscillator assembly 170 and other drive elements within housing 155 are shown in accordance with an exemplary embodiment. Actuation from handle 150 may be actuated by power source 192 . Power source 192 may be a battery or a storage cell connected to a wall outlet source for plug-in system 100 embodiments. Oscillator assembly 170 may be driven by motor 165 . Motor 165 may include a drive shaft 190 (FIG. 19) that rotates during operation. Drive shaft 190 may be coupled to cam assembly 195 . The top of cam assembly 195 may include cam 185 (FIG. 18). Cam 185 may be coupled to the proximal end of shaft 172 . Cam 185 may be configured to, when engaged with shaft 172 , laterally drive shaft 172 as motor drive shaft 190 rotates cam assembly 195 . In some embodiments, oscillator assembly 170 may include sleeve 175 that houses a portion of shaft 172 . As shown in FIG. 20, in an exemplary embodiment, cam 185 may comprise a protrusion that is received within a pocket of sleeve 175 . As the cam 185 rotates, the projections move the sleeve 175 laterally along the path of cam rotation. Shaft 172 moves laterally with sleeve 175 . In some embodiments, handle 150 may include one or more guide plates 180 . Guide plate 180 may include a groove through which shaft 172 passes. The groove(s) of guide plate 180 may include a width that defines a range of motion that limits lateral movement of shaft 172 . Guide plate 180 ensures that shaft 172 remains in a restricted path of motion. Some embodiments may include a cover 194 to prevent water from entering the handle and contacting internal elements.

Those skilled in the art will appreciate that the various components can be arranged differently (e.g., arranged in a different order or partitioned in a different manner) without departing in any way from the scope of the subject technology. would do.

The previous description is provided to enable any person skilled in the art to practice the various aspects described herein. The foregoing description provides various examples of the subject technology, and the subject technology is not limited to these examples. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. Accordingly, the claims are not intended to be limited to the embodiments shown herein, but are to be accorded the full scope consistent with the language of the claims. Here, references to elements in the singular are intended to mean "one or more" rather than "only one," unless stated otherwise. Unless stated otherwise, the term "some" refers to one or more. Male pronouns (eg, his) include feminine and neuter genders (eg, her and its) and vice versa. Headings and subheadings, if any, are used for convenience only and do not limit the invention.

As used in this disclosure, the terms "top", "bottom", "front", "back", "top", "bottom", etc. are intended to denote an arbitrary frame of reference rather than the usual gravitational coordinate system. be understood. Thus, the top, bottom, front and rear surfaces may extend upward, downward, diagonally or horizontally in the gravitational frame of reference. Similarly, a unit placed above another unit may be placed above or below the other unit along vertical, horizontal or diagonal directions, and may be placed below the other unit. Units may be placed below or above other units along vertical, horizontal or diagonal directions.

A phrase such as an "aspect" does not imply that such aspect is essential to the subject technology or that such aspect applies to all configurations of the subject technology. A disclosure relating to an aspect may apply to all configurations, or one or more configurations. An aspect may provide one or more examples. A phrase such as an aspect may refer to one or more aspects and vice versa. A phrase such as an "embodiment" does not imply that such embodiment is essential to the subject technology or that such embodiment applies to all configurations of the subject technology. do not have. A disclosure relating to one embodiment may apply to all embodiments or to one or more embodiments. An embodiment may provide one or more examples. The phrase such embodiment may refer to one or more embodiments, and vice versa. A phrase such as "configuration" does not imply that such configuration is essential to the subject technology or that such configuration applies to all configurations of the subject technology. A disclosure regarding configurations may apply to all configurations, or to one or more configurations. A configuration may provide one or more examples. References to such configuration embodiments may refer to one or more configurations, and vice versa.

The term "exemplary" is used herein to mean "serving as an example or illustration." Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs.

All structural and functional equivalents, known or later known to those skilled in the art, to the elements of the various aspects described throughout this disclosure are expressly incorporated herein by reference. , is intended to be included in the scope of the present claims. Moreover, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly recited in the claims. No claim element shall be referred to as "for" unless the element is explicitly recited using the phrase "means for" or, in the case of a method claim, "for". Unless stated using the phrase "step for", it shall not be construed under the provisions of 35 U.S.C. Further, to the extent the terms "include," "have," etc. are used in the specification or claims, such terms may be used interchangeably with the term "comprise." It is intended to be as inclusive as "comprise," as it is interpreted when employed as a transitional word in .

As will be appreciated, the embodiments disclosed below may be practiced in the field of oral hygiene and oral hygiene tools and may have industrial applicability to the field.

Claims (20)

An arcuate tray configured to receive a set of teeth, the tray comprising:
an inner arcuate wall;
an outer arcuate wall;
a baffle positioned transversely between the inner surface of the outer arcuate wall and the inner surface of the inner arcuate wall and defining an upper channel for receiving a tooth of the upper jaw and a lower channel for receiving a tooth of the lower jaw;
an arcuate tray comprising: a plurality of bristles disposed within said upper channel and within said lower channel;
a handle;
a connector by which the arcuate tray is coupled to the handle;
a motor coupled to the handle;
an oscillator coupled to the connector, the oscillator configured to move the arcuate tray side to side along the same plane as the baffle in response to operation of the motor; and a tooth cleaning system. 2. The tooth cleaning system of claim 1, wherein the bristles are disposed on the upper and lower surfaces of the baffle, the inner surface of the inner arcuate wall, and the inner surface of the outer arcuate wall. The tooth cleaning system of claim 1, wherein the outer arcuate wall includes a shell configured to constrain the inner surface of the outer arcuate wall. 4. The method of claim 3, wherein the outer shell is a first plastic material and the inner surface of the outer arcuate wall is a second plastic material, the second plastic material being harder than the first plastic material. tooth cleaning system. 4. The tooth cleaning system of claim 3, wherein the inner surface of the outer arcuate wall includes a plurality of grooves spaced apart to provide flexibility to the outer arcuate wall. 2. The tooth cleaning system of claim 1, wherein the inner arcuate wall includes a shell configured to constrain an inner surface of the inner arcuate wall. 7. The method of claim 6, wherein the outer shell is a first plastic material and the inner surface of the outer arcuate wall is a second plastic material, the second plastic material being harder than the first plastic material. tooth cleaning system. a shaft coupled to the oscillator, the shaft configured to couple to the connector;
a cam coupled to the motor, the cam fixed to the lower end of the shaft, the cam arranged to move the shaft side to side in response to operation of the motor; The tooth cleaning system of claim 1, further comprising a cam. 9. The tooth cleaning system of claim 8, further comprising a guide plate, wherein the width of the opening in the guide plate limits the range of side-to-side motion of the shaft. An arcuate tray configured to receive a set of teeth, the tray comprising:
an inner arcuate wall;
an outer arcuate wall;
a baffle positioned transversely between the inner surface of the outer arcuate wall and the inner surface of the inner arcuate wall and defining an upper channel for receiving a tooth of the upper jaw and a lower channel for receiving a tooth of the lower jaw;
a plurality of bristles disposed within said upper channel and said lower channel, said plurality of bristles comprising a density of 324-646 bristles per cm ² ; and ,
a handle;
a connector by which the arcuate tray is coupled to the handle;
a motor coupled to the handle, the operation of which causes the teeth of the upper jaw to be brushed and the teeth of the lower jaw to be brushed. 11. A tooth cleaning system according to claim 10, wherein the bristles are disposed on the upper and lower surfaces of the baffle, the inner surface of the inner arcuate wall, and the inner surface of the outer arcuate wall. 12. The bristles on the inner surface of the inner arcuate wall and the inner surface of the outer arcuate wall project from the inner surface of the inner arcuate wall and the inner surface of the outer arcuate wall at an acute angle to the plane of the baffle. teeth cleaning system. wherein each of said upper and lower surfaces of said baffle, an inner surface of said inner arcuate wall and an inner surface of said outer arcuate wall includes a plurality of receptacles, said plurality of bristles being arranged in bundles within respective receptacles. 12. A tooth cleaning system according to clause 11. 14. A tooth cleaning system according to claim 13, wherein the upper surface, the lower surface or the baffle includes 7.72 to 15.38 holes per ^cm2 for retaining the bristles. The inner surface of the outer arcuate wall includes a plurality of first grooves spaced apart to provide flexibility to the outer arcuate wall, the inner surface of the inner arcuate wall comprising the outer arcuate wall. 11. A tooth cleaning system according to claim 10, including a plurality of second grooves spaced apart to provide flexibility to the tooth. An arcuate tray configured to receive a set of teeth, the tray comprising:
an inner arcuate wall;
an outer arcuate wall;
a baffle positioned transversely between the inner surface of the outer arcuate wall and the inner surface of the inner arcuate wall and defining an upper channel for receiving a tooth of the upper jaw and a lower channel for receiving a tooth of the lower jaw;
a plurality of bristles disposed within said upper channel and said lower channel, said plurality of bristles comprising a density of 324-646 bristles per cm ² of said baffle; an arcuate tray wherein each of the upper surface and the lower surface of the baffle, the inner surface of the inner arcuate wall and the inner surface of the outer arcuate wall includes a plurality of receptacles, and the plurality of bristles are arranged in a bundle within each receptacle; ,
a handle;
a connector by which the arcuate tray is coupled to the handle;
a motor coupled to the handle, the operation of which causes the teeth of the upper jaw to be brushed and the teeth of the lower jaw to be brushed;
an oscillator coupled to the connector, the oscillator configured to move the arcuate tray side to side along the same plane as the baffle in response to operation of the motor; and a tooth cleaning system. 17. The bristles on the inner surface of the inner arcuate wall and the inner surface of the outer arcuate wall project from the inner surface of the inner arcuate wall and the inner surface of the outer arcuate wall at an acute angle to the plane of the baffle. teeth cleaning system. 18. A tooth cleaning system according to claim 17, wherein the upper surface, the lower surface or the baffle includes 7.72 to 15.38 holes per cm ² for retaining the bristles. a shaft coupled to the oscillator, the shaft configured to couple to the connector;
a cam coupled to the motor, the cam fixed to the lower end of the shaft, the cam arranged to move the shaft side to side in response to operation of the motor; 17. The tooth cleaning system of claim 16, further comprising a cam. 20. The tooth cleaning system of claim 19, further comprising a guide plate, wherein the lateral extent of the shaft is limited by the width of the opening in the guide plate.

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